Amorphous crystal system

No ordered crystal lattice at all – e.g. natural glasses and some mineraloids.

20 minerals in Crystopedia are recorded as amorphous.

• Angastonite CaMgAl₂(PO₄)₂(OH)₄·7H₂O
• Belyankinite Ca₁-₂(Ti,Nb)₅O₁₂ * 9H₂O (?)
• Bolivarite Al₂PO₄(OH)₃·4H₂O
• Delvauxite CaFe³⁺₄(PO₄)₂(OH)₈·4-5H₂O (?)
• Diadochite Fe³⁺₂(PO₄)(SO₄)(OH)·6H₂O
• Evansite Al₃PO₄(OH)₆·6H₂O
• Georgeite Cu₂(CO₃)(OH)₂
• Gerasimovskite Mn²⁺(Nb,Ti)₅O₁₂·9H₂O
• Jordisite MoS₂
• Karnasurtite-(Ce) (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si₂O₇)(OH)₄ * 3H₂O
• Lechatelierite SiO₂
• Manganbelyankinite (Mn,Ca)(Ti,Nb)₅O₁₂ * 9H₂O
• Metastibnite Sb₂S₃
• Meymacite WO₃ * 2H₂O
• Neotocite
• Pitticite [Fe,AsO₄,SO₄,H₂O] (?)
• Rosièresite [Pb,Cu,Al,PO₄,H₂O] (?)
• Santabarbaraite Fe³⁺₃(PO₄)₂(OH)₃ * 5H₂O
• Thorosteenstrupine (Ca,Th,Mn)₃Si₄O₁₁F·6H₂O
• Umbozerite Na₃Sr₄ThSi₈(O,OH)₂₄